Novatek-electro PEF-305 Operation Manual

«NOVATEK-ELECTRO» Ltd

Intelligent industrial electronics

PEF-305

AUTOMATIC
ELECTRONIC
PHASE SWITCH

OPERATION MANUAL

Quality control system on the developmentand production complies with requirements

ISO 9001:2015

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Dear customer,

Company NOVATEK-ELECTRO LTD. thanks you for purchasing our products.

You will be able to use properly the product after carefully studying the Operating Manual.

Keep the Operating Manual throughout the service life of the product.

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Installation and adjustment of the device must be performed by the skilled professionals having studied this
Operation Manual.
The power of the connected load must not exceed that specified in this manual, since this may cause
overheating the contact group and a fire.
IN COURSE OF TROUBLESHOOTING, MAINTENANCE, INSTALLATION WORKS, IT IS NECESSARY TO
DEENERGIZE THE DEVICE BY DISCONNECTING THE POWER SUPPLY CORD. IT IS FORBIDDEN TO
OPEN AND REPAIR THE DEVICEWITHOUT ANY PROFESSIONAL HELP.
IT IS PROHIBITED TO OPERATE THE DEVICE WITH MECHANICAL DAMAGES OF THE CASE.
Do not use the device in aggressive environments with acids, alkalis, oils, etc. in the air.
The device is safe for use under keeping of the operating rules.

Odessa,Ukrainewww.novatek-electro.com

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PEF-305

NOVATEK-ELECTRO

1 DESCRIPTION AND OPERATION

1.1 Application

Universal automatic electronic phase switch is designed to supply industrial and household single-phase of
230 V/50 Hz load from three-phase mains to ensure uninterrupted power supply of single-phase consumers and
protect them against unallowable voltage fluctuations in the mains. Depending on the availability and quality of
voltage on the phases, PEF-305 automatically selects the most optimum phase and feeds it with the single-phase
load of any power:

- measurement error is 1% maximum;

- automatic phase switching when its value drops below 180 V AC;

- three-phase power of L1-L2-L3 (L1- priority phase);

- factory settings: switching threshold voltage (180 V AC), switching time (150 ms) and voltage hysteresis (10 V

AC).

1.2 Controls and overall dimensions ofPEF-305

Fig. 1–Overall dimensions

1.3 Operation conditions

The device is intended for operation in the following conditions:

– Ambient temperature: from minus 20 to +45 °С;

– Atmospheric pressure: from 84 to 106.7 kPa;

– Relative humidity (at temperature of +25 °С): 30 … 80 %.

If the temperature of the device after transportation or storage differs from the ambient temperature at which it is
supposed to be operated, then before connecting to the mains keep the device under the operating conditions
within two hours (because of condensation may be on the device elements).

ATTENTION! The device is not intended for operation in the following conditions:

– Significant vibration and shocks;

– High humidity;

– Aggressive environment with content in the air of acids, alkalis, etc., as well as severe contaminations

(grease, oil, dust, etc.).

2 TECHNICAL SPECIFICATIONS

2.1 Basic Technical Specifications

The basic technical specifications are given in Table 2.1.

Table 2.1 - Basic Technical Specifications

Rated phase voltage, V

3 x 230 V AC + N

Mains frequency, Hz

50 Hz

Protection rating of the device case

IP20

Time of switching over, ms

˜150